База знаний
Dell LCD Display Pixel Guidelines
This article provides information on LCD display pixel guidelines for LCD panels on laptops and Dell flat panel monitors, understand what is a pixel or dot, how to identify a bright or dead pixel on your LCD Display and some answers to frequently asked questions.
Table of Contents:
- LCD Display Pixel Guidelines
- What is Dell's Premium Panel Guarantee?
- Pixel or Dot Grid
- Frequently Asked Questions
LCD Display Pixel Guidelines
Each Pixel is made up of a red, green and blue sub-pixel. When a sub-pixel is fixed in an unchanging state, the visible result is a tiny black, white or colored spot that appears on the screen. There are generally two types of sub-pixel defects namely bright and dark sub-pixel defects. A sub-pixel defect is also referred to as a dot defect.
Bright Sub-Pixel Defects: A sub-pixel remains permanently lit, resulting in a white or colored dot on a black background.
Dark Sub-Pixel Defects: A sub-pixel remains permanently unlit, resulting in a black or colored dot on a white background.
The Premium Panel Guarantee is premium within the industry, because it is guaranteed during the term of the limited hardware warranty to have zero pixels stuck in the "on" position — a factor that results in a bright dot on the display.
During LCD manufacturing process, it is not uncommon for one or more sub-pixels to become fixed in an unchanging state. A display with a 1 to 5 fixed sub-pixel is considered normal and within industry standards.
Back to TopWhat is Dell's Premium Panel Guarantee?
Dell is now offering a Premium Panel Guarantee that ensures zero "bright pixel" defects on your UltraSharp, Professional and Alienware monitors purchased from Dell.
While defective pixels do not necessarily impair the performance of your monitor, they can be annoying and distracting, especially if the pixels are located in positions where viewing quality is reduced
Unyielding commitment to quality and the satisfaction of our customers has driven Dell to offer a Premium Panel Guarantee as part of our standard Limited Warranty coverage. Even if only one bright pixel is found, a free monitor exchange is guaranteed during the Limited Warranty period.
The Premium Panel Guarantee is available for UltraSharp, Professional and Alienware monitors sold with systems or as stand-alone units purchased direct from Dell, and is included with Dell's standard 3-year Limited Warranty. Customers who purchase a 4th or 5th year extended Limited Warranty can also take advantage of this coverage for the duration of the Limited Warranty period.
Back to Top
Pixel or Dot Grid
Your LCD display is possibly subject to replacement if it meets the criteria outlined in Table 1.
| Panel | Bright sub-pixel | Dark sub-pixel | Total sub-pixel |
|---|---|---|---|
Flat panel monitors with Premium Panel Guarantee:
|
1 or more | 6 or more |
|
| Dell monitors (D Series) | 6 or more | 9 or more | Combination of bright and dark = 9 or more |
Dell Large monitors (C Series)
|
|
|
|
| All other Dell flat panel monitors | 6 or more | 6 or more | Combination of bright and dark = 6 or more |
Dell Laptop LCD screen with standard panel on:
|
3 or more | 6 or more | Combination of bright and dark = 6 or more |
Dell Laptop LCD screen with Premium Panel Guarantee:
|
1 or more | 6 or more |
|
Back to Top
Frequently Asked Questions
Click on a section below to get more information.
A dead pixel refers to a pixel with a defect in its ability to display the correct color output. It may look like a tiny black or white spot on the screen. When the pixel remains permanently lit, it is known as a bright pixel.
Unfortunately, no. A defective pixel will remain permanently lit until the monitor is powered off.
Dell’s Premium Panel Guarantee applies to UltraSharp, Professional and Alienware monitors with bright pixel defects only. The Premium Panel Guarantee does not cover monitors with dark/ black type of dead pixels.
Dell's Premium Panel Guarantee applies to all UltraSharp, Professional and Alienware monitors bought directly from Dell, and from retail stores with "bright pixel" defects during the Limited Warranty term.
- Power off your PC and the monitor.
- Unplug the video cable from the monitor.
- Clean the screen with a lint free cloth as dust may be the "spot" which is seen.
- Ensure the power cable is plugged into the monitor.
- Power on the monitor.
- A floating box on a black background should now appear.
- Check the screen for bright pixels. These pixels are usually lit resulting in a white or colored (red, green or blue) dot on a black background.
Alternatively, you could also run the monitor / LCD Built-in Self Test by following our How to Run the Built-In Diagnostics for you Desktop Monitor or How to Run the LCD Built-in Self Test for Laptops. - Notice bright dot or bright pixels or any other distortion on the screen.
- Contact Dell Technical Support if you notice any defects.
- Power off your PC and the monitor.
- Unplug the video cable from the monitor.
- Clean the screen with a lint free cloth as dust may be the "spot" which is seen.
- Ensure the power cable is plugged into the monitor.
- Power on the monitor.
- Run the monitor / LCD Built-in Self Test by following our How to Run the Built-In Diagnostics for you Desktop Monitor or How to Run the LCD Built-in Self Test for Laptops.
- 7.The screen should now alternate between multiple colors (white, red, green, blue and black).
- 8.Notice the dark dot or dark pixel or any other distortion on the screen.
- Contact Dell Technical Support if you notice any defects.
Your Limited Warranty covers your monitor against defective parts and workmanship. If you experience a part failure during your Limited Warranty period, we'll first troubleshoot the system with you over the phone. If your issue is identified as a bright pixel after phone-based troubleshooting, Dell will ship you a replacement unit the next business day.
During the term of your Limited Warranty, your Dell monitor includes all of the benefits of Dell's 24x7 toll-free technical phone support and Advanced Exchange Service.
While most manufacturers only provide a 30-day zero bright pixel guarantee, Dell’s Premium Panel Guarantee is valid for the term of your Limited Warranty or extended warranty terms of 4 or 5 years.
The Limited Warranty for monitors, purchased independent of a system, lasts for the time period indicated on your packing slip, invoice or receipt. Monitors purchased with a system are covered by the term of the system Limited Warranty.
More information and support for your Dell monitor, laptop or tablet screen can be found on our Monitor Support site.
Код статьи: SLN130145
Дата последнего изменения: 08/07/2018 07:20 AM
Оцените эту статью
Помогла ли вам эта статья?
Отправьте нам свое мнение
Благодарим вас за отзыв.